智能合约令牌分发解决方案

Question

关于令牌销售，我有一个问题:令牌分发是如何工作的？

举个例子：

10% for private sale
30% for public sale 
20% for dev team
40% for rewards 

令牌的数量将在创建令牌时转移到这些地址，还是在创建令牌后转移到这些地址？

Answer 1

它依赖于令牌合约的实现，可以两者兼而有之。

例如，在创建令牌后立即将100个令牌投入公开销售，并保留另外50个令牌以供开发团队地址稍后授予：

pragma solidity ^0.8;

contract MyToken {
    mapping (address => uint256) _balances;
    mapping (address => Vesting) _vesting;
    
    struct Vesting {
        uint256 amount;
        uint64 unlockTime;
    }
    
    constructor() {
        address publicSaleAddress = address(0x123);
        address devTeamAddress = address(0x456);
        
        // set the `publicSaleAddress` balance right away
        _balances[publicSaleAddress] = 100;

        // don't set the `devTeamAddress` balance now
        // instead, allow them to claim it after some time
        uint64 deadline = uint64(block.timestamp) + 365 days;
        _vesting[devTeamAddress] = Vesting(
            50,
           deadline
        );
    }
    
    function unvest() external {
        // check if they have something to unvest
        require(_vesting[msg.sender].amount > 0, 'Nothing to unvest');
        
        // check if they are allowed to unvest yet
        require(_vesting[msg.sender].unlockTime >= block.timestamp, 'Not yet');
        
        // increase their balance
        _balances[msg.sender] += _vesting[msg.sender].amount;
        
        // prevent them from claiming the balance again
        _vesting[msg.sender] = Vesting(0, 0);
    }
}